Condenser



May 12, 1925. 1 1,537,271 l P. STROMBACK l coNDENsER Filed June 21, 19233 Sheets-Sheet 1 l1 mm 2 im "f l 1N VENTO/e.

vBY

HJSA TTORNEY.

May 12, 1925.

P. sTRoMBAcK comarmslsa Filed June 21, 1923 5 Sheets-Sheet 2 INVENTOR.ffii@ Sir RYL., f

amam

H129 A TTONEY.

May 12, 1925i P. STROMB-ACK CONDENSER Filed vJune 21, 1923 3Sheets-Sheet 3 n v 7A Lv VEN TOR. fonzhw/ IVTNESSES:

HIS A TTORNEK Patented May 12, 1925.

1,537,271 Fries.

PHILIP STROMBACK, OF PHILADELPHIA, LEENNSYLVANIA.

ooNnnNsna.

Application filed June 21, 1923. Serial No. 646/775.V

To all whom, it may concern Be it known that I, PI-IiLir STROMBACK,

ra citizen of the United States, residing at Philadelphia, in the countyof Philadelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Condensers, of which the following is a specilication. l

My invention relates to condensersV which are particularly adapted foruse in refrigei1u ating apparatus for condensing ammonia or other gasesused for refrigeration.

Heretofore in refrigerating apparatus it .has been the practice toemploy a condenser which used water as a cooling medium. This watercirculated through the condenser and after absorbing its quota of heatfrom the condenser was cooled by air and used again. yThis cooling ofthe water and circu lating it through lthe `condenser involvedconsiderable consumption of power which was expensive.

The object of my invention is toprovide condenser which will use airdirectly as the cooling medium;v will ldo away with the watercirculating apparatus and thereby reduce the cost of refrigeration; willhave av maximum cooling surface in a minimum space; will agitate the airas it passes through the condenser, and embody the economic principle ofcounter-current heat eX- change. Y i

These objects, and other advantageousy ends which will be describedhereinafter, I attain in the following manner, reference being had tothe accompanying drawings in which- Figure 1 is a plan view of acondenser constructed in accordance with my invention the cover of thecondenser being removed,

v Figure 2 a section on line 2-2 of Figure 1,

Figure 3 au enlarged fragmentary central section of the condensing unitshown in Figure 2, and. Y y i' Figure 4 a fragmentary section on linele-L1 of Figure 3.

Referring to the drawings, 1 indicates a casing which may beof anysuitable construction, 2 the condensing units which are similarlyconstructed and connected at their top to a gas inlet pipeB and at theirbottom to a fluid outlet The condensing dpipe 1. units are -mounte ontop sup Ortsv 5 andbottom supports 6. Any num er of-these units may7 bearranged in this manneru Each unit comprises vertical outer tubesconnected at their upper ends to a gas inlet manifold 8 and at theirlower ends to a fluid outlet manifoldV 9, the connections ybeing made inany suitable manner such as by threads 10 and flanges 11. Inner tubes 12pass within the outer tubes and have their ends extending out of themanifolds, the ends being connected to the manifold in any suitablemanner, such as by stuiing boxes 13, rto prevent gas from leaking out ofthe manifold. This arrangement forms a gas conduit, Abetween each outerandV inner tube, which communicates with the inlet and outlet manifoldsso that gas will pass from the inlet manifold 8 downV between the outerand inner tubes 7 and 12 where it willbe condensed into liquid, and intothe-outlet manifold 9 from which the condensed gas may pass through therefrigeratingappa#L ratus in the usual manner.

The controlling and circulating means for the cooling air comprisesaniair inlet 14 disposed in the bottom of the casing which has a damper15 mounted therein for controlling the passage of air therethrough. Anair outlet 16 i-s disposed at the top of the casing and communicateswith a blower 17 of'any suitable type. A bottom baffle 18 ispmountedadjacent the bottom of the casingi and vforms a partition between thecooling a-ir which circulates through the inner tubes and the air whichcirculates around the outside of the outer tubes. `This partition isdisposed soth'at its edge 19 will be midway of' the air inlet 111, thusallowing air to enter above and below the partitionk as shown in LsoFigure 2. A baille 2O is disposed above theV bottom baille 18 and hasits free edge 21 eX- tendinj toward the left of the condensing unit. Abafl1e'22 is disposed above thev baille 2O and has its free edge 23extending toward the right of the condensing unit. A top the left of thecondensing unit, kThis arrangement of the baflles conveys the coolingair around the outside of the outer tubes in an upwardly zig-naggingmanner; The baf fles may be mounted in the casing in any suitable mannersuch as by resting them on bafile 24 has its ed e 25 extending toward 'f:felt and down between the inner and outer tubes into the outletmanifold 9. During its passage between the inner and outer tubes thecooling air will' absorb the heat and condense the `gas before itreaches the outlet manifold 9. The liquefied gas will then pass into thefluid outlet pipe Il .trom which it will pass into the retrigeratingappz'iratus in the usual manner,

fr condenser constructed as abtnfe described embodies the principle ofcountercurrent'heat exchange, that is, the hot gases entering` at thetop tlo'w downward While the cold airA entering` at the bottom Hows upnWard. This keeps the lower parts cool While the upper parts'gradiiallyincrease in tempe'ratur'ey;y thus preventingv leaks in the condenser. The air, eireulatin'garound the ontside'of the tubes and within the innertubes', provides a maximum coolingcapacity in a minimum spaee.` rl`h'e'horizontal disposition of the'batlles causes the cooling air to traveltransversely to the tubes, thus agitating the air so thatja moreetleetire cooling is obtained. rlClie passage of the amount ot airnecessaryv4 toncondens'ation is lcontrolled by the daniperl.

Thilo have described myl invention as taking a particular"form, it willbeunderstood that the Various parte may be changed without departingfrom the spirit thereof, and hence l do not limit myself to the pre oiseconstruction set'tortl., but consider that l anrat liberty' to maltesuch changes and alterations as 'fairly come within the scope ot' theappended cvlaiiiis.

llaring thus described my inventioi'i, what l claim as new and desire tosecure by lietters Patent is l. condenser 'for use retrig'eratingapparatus comprising a casing' having an air inlet openingadjacent itsbottom andan air outlet opening' at its top, Aa tluid inlet mani- 'loldand atluid outlet manifold mounted in the casing` and connected by outertubes; inner 4tubes passing-Ay through the outer tubes and the manifoldsand providing independent passages therethrouglna partition dividing`ott a portion o the easingr and having an end crossingr the air inletopening, said inner tubes extending into said divided ott portion oitthe easing to receive the coolin l air inflowing through said inletopening, and means above the partition for directingl the air inilowingabove said partition to and about the outer tubes7 substantiallyv asdescribed.

9,. A Condenser tor use in reirigeratiug apparatus con'il'n'isingacasing` having an air inlet opening adjacent its bottom end and an airoutlet opening` at. its top end, a tiuid inlet manifold near the tog endot the easing, a iluid outlet manifold near the' bottoni end oit 'thecasing', outer tubes connecting,` said inanilolds, a partition a-erossthe rising abore said outlet n'ianiiold and ha\.'in'` an end across`sai-d air inlet opening, inner tube:1 passing;` through the outer tubesand the manifolds and opening below said partition to receive thecooling` air ii'illouinnv through said air inlet opening`r and meansabove said partition for' directing; the cooling air iuilowing; abovesaid partition around said outer tubes.

3. A condenser ior use in re'lirigerating apparatus comprising a easirgharing` an air inlet opening adjacent its bottom and an outlet openingat its top, a 'iluid inlet manifold anda fluid outlet manifold n'iountedin the' casing and connected by outer tubest inner tubes pr-.ssingthrough the Vouter tubes and the manifolds and providing' independentpassages theretl'irough.a partition dividing oil a portion otther-asino' and having;- an end crossing. the air inlet openingen saidinner tubes extending into said divided oli1 portion ot the casing toreceive the coolin`- air inthawingl through said inlet opening, meansabove the partition Yfor directing the inflow ot' air above saidpartition' around the outer tubesl` means i'or'eontrolling the cooling"air inthnving` throusfh said aiil inlet opening", and means l'or toieingthe air out through said air outlet oilieninfg, substantiall)y aslescrilized.

ln 'testimony whereof have signed my name to this specilieation in thepresence ot tiro subscribing Witnesses.

o Pl'lllill 'STllOlillBfrCil lVitnesses 1 ELIZABETH Gamin, Clins.' E.lo'r'rs.

air-

